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Liquid state bioconversion continuous bioreactor of sewage sludge treatment: Determination and evaluation of mixed fungi growth kinetics

Roshanida, A. Rahman and Ahmadun, Fakhrul-Razi and Barghash, Hind F. A. and Hassim, Mimi Haryani (2018) Liquid state bioconversion continuous bioreactor of sewage sludge treatment: Determination and evaluation of mixed fungi growth kinetics. Process Safety and Environmental Protection, 120 . pp. 128-135. ISSN 0957-5820

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Official URL: http://dx.doi.org/10.1016/j.psep.2018.08.030

Abstract

Liquid state bioconversion (LSB), a bioremediation and biodewatering process was applied for sewage sludge treatment in this study. The LSB process is a non-hazardous, safer and environmentally friendlier method for ultimate sludge management and disposal compared to the other available technologies. The system presented in this study was developed by using mixed fungi of Aspergillus niger and Penicillium corylophilum to treat sewage sludge in a LSB bioreactor. This research was conducted in order to study the LSB process on continuous system in terms of kinetic coefficients determination. For the continuous LSB process, a mathematical model was developed from the basic principles of material balance based on Monod equation. By investigating the kinetics of substrate utilisation and biomass growth, the kinetic coefficients of growth yield coefficient (Y), specific microorganism decay rate (Kd), half saturation constant (Ks) and maximum specific growth rate (μmax) were found to be 0.79 g VSS g COD−1, 0.012 day−1, 1.78 g COD L−1 and 0.357 day−1, respectively.

Item Type:Article
Uncontrolled Keywords:Aspergillus niger, bioremediation, continuous bioreactor, dewaterability, kinetic coefficients, penicillium corylophilum, sewage sludge
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Chemical and Energy Engineering
ID Code:86006
Deposited By: Yanti Mohd Shah
Deposited On:30 Aug 2020 16:49
Last Modified:30 Aug 2020 16:49

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